German experts can help translate. Thank you.

Four children with very different personalities have the same dream to chase speed and adventure. castle? (Why is it a castle? Is it a big mistake?) It is a legendary place in the hearts of children. It is adventurous, exciting and full of difficulties. Legend has it that all world racing champions in history came from them. For these kids, the goal is to qualify. Including these four children, of course. The rich young man Robin, the heroic David and his little sister Luca, and the unlucky Qiqi. They got a ticket, and in order to realize their dreams, they have to get back together from now on

Summary